Top heat sealing unit for pouches

Details Top heat sealing unit for pouches Top heat sealing unit for pouches

1980-07-07

1983-01-25

Coan, James F.

Package making

With contents treating

Heating or cooling

53373, 53DIG2, 493209, B65B 5114, B65B 5504

Patent

active

043696112

ABSTRACT:
The top of a flexible pouch is sealed when two heated bars are pressed into engagement with opposite sides of the pouch. One of the bars is formed with two angled surfaces which converge into intersecting relation with one another so as to drive moisture from the seal area and enable the formation of a substantially blemish-free seal.

REFERENCES:
patent: 2649674 (1953-08-01), Bartelt
patent: 3673041 (1972-06-01), Schulz et al.
patent: 3679509 (1972-07-01), Fielibert
patent: 3830681 (1974-08-01), Wilson
patent: 3982991 (1976-09-01), Hamm et al.
patent: 4081942 (1978-04-01), Johnson

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